mirror of
https://gitee.com/milvus-io/milvus.git
synced 2024-12-04 21:09:06 +08:00
62 lines
1.7 KiB
Go
62 lines
1.7 KiB
Go
// Licensed to the LF AI & Data foundation under one
|
|
// or more contributor license agreements. See the NOTICE file
|
|
// distributed with this work for additional information
|
|
// regarding copyright ownership. The ASF licenses this file
|
|
// to you under the Apache License, Version 2.0 (the
|
|
// "License"); you may not use this file except in compliance
|
|
// with the License. You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
package mqclient
|
|
|
|
import (
|
|
"context"
|
|
|
|
"github.com/apache/pulsar-client-go/pulsar"
|
|
)
|
|
|
|
// pulsarReader contains a pulsar reader
|
|
type pulsarReader struct {
|
|
r pulsar.Reader
|
|
}
|
|
|
|
// Topic returns the topic of pulsar reader
|
|
func (pr *pulsarReader) Topic() string {
|
|
return pr.r.Topic()
|
|
}
|
|
|
|
// Next read the next message in the topic, blocking until a message is available
|
|
func (pr *pulsarReader) Next(ctx context.Context) (Message, error) {
|
|
pm, err := pr.r.Next(ctx)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
return &pulsarMessage{msg: pm}, nil
|
|
}
|
|
|
|
// HasNext check if there is any message available to read from the current position
|
|
func (pr *pulsarReader) HasNext() bool {
|
|
return pr.r.HasNext()
|
|
}
|
|
|
|
func (pr *pulsarReader) Close() {
|
|
pr.r.Close()
|
|
}
|
|
|
|
func (pr *pulsarReader) Seek(id MessageID) error {
|
|
messageID := id.(*pulsarID).messageID
|
|
err := pr.r.Seek(messageID)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
return nil
|
|
}
|